Calibration This is for performing touch panel calibration. 62 Item Description Linearization Curve The currently set linearization curve is displayed. 4 Points Calibration Calibration is performed based on 4 reference points. The linearization parameters are maintained. Clear and Calibrate The linearization parameters are cleared and a 4 points calibration is per- formed. Linearization To improve the linearity of the touch panel, linearization is performed using the reference points set in the [Setting] tab. Draw Test Perform a draw test to verify the accuracy of the touch panel. Clear : Clears the test contents. Quit : Quits the draw test.